Subject | Re: [Firebird-Architect] Blob Compress -- Some Numbers |
---|---|
Author | Arno Brinkman |
Post date | 2005-05-17T08:34:18Z |
Hi,
The biggest part of this data couldn't be good compressed and is seen as overhead, thus we can't
expect much difference?
Is decompression/compression time also included in these measurements?
Still i think compression can be very usefull for a lot of data.
Regards,
Arno Brinkman
ABVisie
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Firebird open source database (based on IB-OE) with many SQL-99 features :
http://www.firebirdsql.org
http://www.firebirdsql.info
http://www.fingerbird.de/
http://www.comunidade-firebird.org/
Support list for Interbase and Firebird users :
firebird-support@yahoogroups.com
Nederlandse firebird nieuwsgroep :
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> application/vnd.rn-realmedia 9 3583755 3272342Did you test compression also "over the wire" or only as stored?
> The aggregate size of the blobs was 334,948,746. The blobs represent
> The aggregate size of the compressed blobs was 271,077,508 bytes.
> The elapsed time for the
> uncompressed blobs was about 64 seconds, the elapse times for fetching
> and decompressing the compressed blobs was about 58 seconds.
>
> The machine was 768MB 1.3GHz Athlon. The machine while decompressing
> was, in the venacular, beat to shit.
>
> I'm losing my enthusiasm for compressed blobs. I'm not convinced the
> big win is there.
The biggest part of this data couldn't be good compressed and is seen as overhead, thus we can't
expect much difference?
Is decompression/compression time also included in these measurements?
Still i think compression can be very usefull for a lot of data.
Regards,
Arno Brinkman
ABVisie
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Firebird open source database (based on IB-OE) with many SQL-99 features :
http://www.firebirdsql.org
http://www.firebirdsql.info
http://www.fingerbird.de/
http://www.comunidade-firebird.org/
Support list for Interbase and Firebird users :
firebird-support@yahoogroups.com
Nederlandse firebird nieuwsgroep :
news://newsgroups.firebirdsql.info